xesenix released this great puzzle game for Ludum Dare 36, the theme for which was 'Ancient Technology':
"Travel through an ancient maze to discover long lost knowledge.
LOOK OUT: this can be kind of difficult - this is my mind in ludumdare mode :P
Your goal is to travel to bottom of ancient ruins. On each level when you make move (left, right, up, down) every active element responds to that rock roll arrows are shot your hero moves.
Rock and arrows will kill your hero if they hit him you can use block to protect yourself from being killed. You can also run rocks into each other to destroy them."